/**
     * Check if connection can send data (has send credits and is established)
     *
     * @return true if can send, false otherwise
     */
    public boolean canSend() {
        return sendCredits.get() > 0 && state == RdmaConnectionState.ESTABLISHED;
    }

    /**
     * Consume a send credit
     */
    public void consumeSendCredit() {

        assertNotNull(tempFile);
        assertTrue(tempFile.exists());

        // Verify file permissions (readable and writable by owner)
        assertTrue(tempFile.canRead());
        assertTrue(tempFile.canWrite());

        // Clean up
        tempFile.delete();
    }

    public void test_createResponseBodyFile_exceptionOnRead() {